Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1990-04-23
1991-10-15
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123516, 220 85US, 137588, F02M 3302
Patent
active
050564943
ABSTRACT:
A device for treating vaporized fuel from a fuel tank of an internal combustion engine, and having a canister. The fuel tank has an inner partition wall which divides the space inside the fuel tank into a first small chamber and a second large chamber, which are separated from each other. A fuel flow is allowed at locations below the fuel levels in the first and second chambers, which are independently connected to the canister device, and a fuel filling pipe is open to the first, small chamber. A pressure control means is provided for maintaining a pressure in the second chamber higher than that in the first chamber, which is near to the atmospheric pressure, whereby fuel vapor is prevented from escaping from the first chamber during a fuel-filling operation.
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Review of Toyota published Technology No. 23, Jul. 29, 1987.
Miller Carl Stuart
Toyota Jidosha & Kabushiki Kaisha
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